Global Patent Index - EP 2803974 A4

EP 2803974 A4 20151230 - GAS SENSOR

Title (en)

GAS SENSOR

Title (de)

GASSENSOR

Title (fr)

CAPTEUR DE GAZ

Publication

EP 2803974 A4 20151230 (EN)

Application

EP 12865116 A 20121227

Priority

  • JP 2012004964 A 20120113
  • JP 2012083880 W 20121227

Abstract (en)

[origin: EP2803974A1] A gas sensor is proposed, which can detect a gas by a novel configuration while reduction in size is achieved. The gas sensor (1) does not need a light absorption path as in a prior art so that the size can be reduced correspondingly. Further, in the gas sensor (1), a gas is absorbed in an ionic liquid (IL), and a dielectric constant of the ionic liquid (IL) that changes by absorbing the gas can be measured according to a change in light intensity that occurs by a surface plasmon resonance phenomenon in a metal layer (7). Thus, the gas sensor (1) including the novel configuration that can detect a gas based on the change in the light intensity can be realized.

IPC 8 full level

G01N 21/552 (2014.01); G01N 33/00 (2006.01)

CPC (source: EP US)

G01N 21/27 (2013.01 - US); G01N 21/553 (2013.01 - EP US); G01N 33/0036 (2013.01 - EP US); G01N 33/004 (2013.01 - EP US); G01N 2201/0612 (2013.01 - US); G01N 2201/067 (2013.01 - US)

Citation (search report)

  • [A] JP 2009025215 A 20090205 - SHARP KK
  • [A] WO 2011136548 A2 20111103 - GS ENGINEERING & CONSTR CORP [KR], et al
  • [A] JP 2006125860 A 20060518 - FUJIKURA LTD
  • [A] US 2007082408 A1 20070412 - JING TIANWEI [US], et al
  • [A] US 2006017931 A1 20060126 - KIMURA TOSHIHITO [JP]
  • [XI] NYLANDER C ET AL: "Gas detection by means of surface plasmon resonance", SENSORS AND ACTUATORS, ELSEVIER, SWITZERLAND, vol. 3, 1982, pages 79 - 88, XP026580230, ISSN: 0250-6874, [retrieved on 19820101], DOI: 10.1016/0250-6874(82)80008-5
  • [XP] ISHIZU K ET AL: "Carbon dioxide detection by surface plasmon resonance with ionic liquid", MICRO ELECTRO MECHANICAL SYSTEMS (MEMS), 2012 IEEE 25TH INTERNATIONAL CONFERENCE ON, IEEE, 29 January 2012 (2012-01-29), pages 784 - 787, XP032137364, ISBN: 978-1-4673-0324-8, DOI: 10.1109/MEMSYS.2012.6170303
  • [A] LIEDBERG B ET AL: "Surface plasmon resonance for gas detection and biosensing", SENSORS AND ACTUATORS, ELSEVIER, SWITZERLAND, vol. 4, 1983, pages 299 - 304, XP026763043, ISSN: 0250-6874, [retrieved on 19830101], DOI: 10.1016/0250-6874(83)85036-7
  • [A] HERMINJARD S SIRIGU L HERZIG H P ET AL: "Surface Plasmon Resonance sensor showing enhanced sensitivity for CO2 detection in the mid-infrared range", OPTICS EXPRESS, OSA (OPTICAL SOCIETY OF AMERICA), WASHINGTON DC, (US), vol. 17, no. 1, 2 January 2009 (2009-01-02), pages 293 - 303, XP007908281, ISSN: 1094-4087
  • [A] ASHWELL G J ET AL: "Highly selective surface plasmon resonance sensor for NO2", ELECTRONICS LETTERS, IEE STEVENAGE, GB, vol. 32, no. 22, 24 October 1996 (1996-10-24), pages 2089 - 2091, XP006005882, ISSN: 0013-5194, DOI: 10.1049/EL:19961376
  • See references of WO 2013105450A1

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

EP 2803974 A1 20141119; EP 2803974 A4 20151230; EP 2803974 B1 20200415; CN 103998918 A 20140820; JP 2013145137 A 20130725; JP 5777063 B2 20150909; KR 20140090258 A 20140716; US 2015009503 A1 20150108; US 9546948 B2 20170117; WO 2013105450 A1 20130718

DOCDB simple family (application)

EP 12865116 A 20121227; CN 201280060964 A 20121227; JP 2012004964 A 20120113; JP 2012083880 W 20121227; KR 20147015736 A 20121227; US 201214368396 A 20121227